CN108768884A - A kind of wireless communication data processing method based on buffer circle - Google Patents
A kind of wireless communication data processing method based on buffer circle Download PDFInfo
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- CN108768884A CN108768884A CN201810389701.7A CN201810389701A CN108768884A CN 108768884 A CN108768884 A CN 108768884A CN 201810389701 A CN201810389701 A CN 201810389701A CN 108768884 A CN108768884 A CN 108768884A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/50—Queue scheduling
- H04L47/62—Queue scheduling characterised by scheduling criteria
- H04L47/622—Queue service order
- H04L47/6225—Fixed service order, e.g. Round Robin
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F12/00—Accessing, addressing or allocating within memory systems or architectures
- G06F12/02—Addressing or allocation; Relocation
- G06F12/08—Addressing or allocation; Relocation in hierarchically structured memory systems, e.g. virtual memory systems
- G06F12/0802—Addressing of a memory level in which the access to the desired data or data block requires associative addressing means, e.g. caches
- G06F12/0893—Caches characterised by their organisation or structure
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/50—Queue scheduling
- H04L47/62—Queue scheduling characterised by scheduling criteria
- H04L47/6245—Modifications to standard FIFO or LIFO
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/90—Buffering arrangements
- H04L49/901—Buffering arrangements using storage descriptor, e.g. read or write pointers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/90—Buffering arrangements
- H04L49/9031—Wraparound memory, e.g. overrun or underrun detection
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/10—Flow control between communication endpoints
- H04W28/14—Flow control between communication endpoints using intermediate storage
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/08—Access point devices
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The wireless communication data processing method based on buffer circle that the invention discloses a kind of, includes the following steps:(1)Initialize installation;(2)Write data;(3)Read data.Through the above way, the present invention is based on the wireless communication data processing methods of buffer circle to pass through to carrying out length limitation before data write-in, and it is data cached in receiving terminal, in addition the small base station of wireless communication system is considered, write-in for multithreading and multi-process or reading module, between writing module and reading intermodule carries out critical zone processing, processing speed and safety to data provide certain ensure, coordination and the consistency treatment of data are carried out for reading in and reading module, also save memory headroom simultaneously, there are extensive market prospects in popularizing for the wireless communication data processing method based on buffer circle.
Description
Technical field
The present invention relates to the communications fields, more particularly to a kind of wireless communication data processing side based on buffer circle
Method.
Background technology
In a wireless communication system, sending and receiving for mass data is treated as difficult point, if directly invoking memory
Distribution and release, Memory Allocation frequent so not only increase overhead, more so that memory fragmentation is on the increase, very not
It is run steadily in the long term conducive to our server.Perhaps we can use memory pool, but for this according to stringent elder generation
Into sequential processes are first gone out, block size is not small, and block size is also and for skimble-scamble Memory Allocation situation, more
Use a kind of scheme being called buffer circle.
Buffer circle is a good technology, does not have to frequent storage allocation, and in most cases, memory
Reusability but also we can do more things with less memory block.When two intermodules of program are communicated
It waits, buffering area becomes the mechanism being commonly used.The characteristics of circle queue is need not to carry out dynamic memory release and divide
Match, uses the memory headroom Reusability of fixed size.
Usually there are one read pointer and a write pointers for buffer circle.Read pointer is directed toward number readable in buffer circle
According to write pointer is directed toward buffering area writeable in buffer circle.Buffering area can be realized by mobile read pointer and write pointer
Digital independent and write-in.In general, the reading user of buffer circle can only influence read pointer, and write user only
It can influence write pointer.If only there are one reading users and one to write user, then need not add mutual exclusion protection mechanism can
To ensure the correctness of data.If there is multiple read-write users access buffer circle, then mutual exclusion protection mechanism must be added
To ensure multiple user's exclusive reference buffer circles.
In buffer circle adds and reads the dynamic process of data, if without departing from loop buffer space buffer,
Simultaneously also without " the bothering " of other processes, then data or Safe Cache.When read pointer and equal write pointer, show
Buffering area is empty, as long as and write pointer behind read pointer when, show that buffering area has been expired.It is 8 to buffer buffer, but be written
Speed, which is more than the speed read, gradually to exceed the range of buffering area, so protection mechanism is added, although present annular is slow
Punching has following status inquiry mechanism:
(1)For push(Data are written)Operation, waiting list has had space before needing to operate, that is to say, that queue does not have
There is full state.Until this state occurs, just continue the operation of push, otherwise, push operations are hung up,
(2)For get(Read data)Operation, waiting list has data before needing to operate, that is to say, that queue is not sky
State.Until this state occurs, just continue the operation of get, otherwise, get operations are hung up.
But for LTE microcomputer platforms, unpredictable system data errors are there is also, so being written in data
Length restriction is carried out to data before, the excessive data in buffer area meeting temporal cache is interrupted except restriction, is equivalent to and adds
Level cache is entered, to control writing speed, avoiding too fast data from being written causes data jamming the unstable of system occur.
It is exactly " the bothering " of process or interruption for the alternatively possible problem, because for real time operating system,
In order to ensure real-time, may there are other processes or interruption to interrupt data transmission at any time, that is, data may be in buffering area
It is destroyed when being handled, it is logical using microcomputer station at this time it is necessary to carry out critical protection for our data buffer zone
Letter system related mechanism realizes critical protection.
Invention content
The invention mainly solves the technical problem of providing a kind of wireless communication data processing side based on buffer circle
Method, by carrying out length limitation before to data write-in, and it is data cached in receiving terminal, in addition consider that wireless communication system is small
Base station, the write-in for multithreading and multi-process or reading module, between writing module and reading intermodule carries out critical zone
Processing, processing speed to data and safety provide it is certain ensure, for read in and read module carry out data coordination and
Consistency treatment, while memory headroom is also saved, in the universal of the wireless communication data processing method based on buffer circle
On have extensive market prospects.
In order to solve the above technical problems, the present invention provides a kind of wireless communication data processing side based on buffer circle
Method includes the following steps:
(1)Initialize installation:
Read pointer P_R, write pointer P_W, system semaphore pointer Buf_sem, buffering area count pick up value flag are set, and system exists
Apply for one section of memory headroom when initialization first, write pointer P_W and read pointer P_R are directed toward to the ground of memory BOB(beginning of block) respectively
It is initialized as 0 at location, by system semaphore pointer Buf_sem, buffering area count pick up value flag is initialized as 0;
(2)Write data:
When data are written to buffer circle, the size of buffering area count pick up value flag and buffering area is first determined whether,
If buffering area count pick up value flag is more than buffering area, which, which will be blocked, waits until that buffering area has
It can be just waken up when space,
If buffering area count pick up value flag is less than buffering area, system temporarily enters critical zone and carries out critical protection to system,
Anti- locking system generates interruption, the buffer data of this task is destroyed to avoid other tasks, then by buffering area count pick up
Value flag+1, the value that will be written are put at the address that write pointer P_W is directed toward, then by write pointer P_W+1, judge whether to be equal to
The end of buffering, if it is then write pointer P_W is directed toward at the first address of buffering area, by system semaphore pointer Buf_sem
+ 1, it exits critical zone write operation and finishes;
(3)Read data:
When reading data to buffer circle, first determine whether the value of system semaphore pointer Buf_sem can use, if being
The value of system semaphore pointer Buf_sem is less than 0, then this task enters blocked state, is just continued to execute when having semaphore,
If the value of system semaphore pointer Buf_sem is more than 0, system enters critical zone and carries out critical protection to system, then
Read pointer P_R is directed toward the value at address and taken out, make read pointer P_R+1, then judges to read to refer to by buffering area count pick up value flag-1
Whether needle P_R has been directed to the end of buffer circle, if it is, read pointer P_R is directed toward to the beginning of buffer circle, with
The read operation of buffer circle can be realized in upper end of operation backed off after random critical zone, the value for returning to taking-up.
Circular buffer is gone to since program initialization, until data reading terminates meeting logarithm before entering caching
Critical section protection is carried out according to processing procedure, the position that can temporarily retain outside access address is accessed when there is process in outside or interrupts,
Pending data processing terminates that external progress or interrupt unit program can be executed.
The beneficial effects of the invention are as follows:The present invention is based on the wireless communication data processing methods of buffer circle to pass through logarithm
Length limitation is carried out before according to write-in, and data cached in receiving terminal, the small base station of wireless communication system is in addition considered, for more
The write-in or reading module of thread and multi-process between writing module and read intermodule progress critical zone processing, to data
Processing speed and safety provide it is certain ensure, coordination and the consistency treatment of data are carried out for reading in and reading module,
Memory headroom is also saved simultaneously, is had widely in popularizing for the wireless communication data processing method based on buffer circle
Market prospects.
Description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing, wherein:
Fig. 1 is the flow signal of one preferred embodiment of wireless communication data processing method based on buffer circle of the present invention
Figure.
Specific implementation mode
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
All other embodiment that technical staff is obtained without making creative work belongs to the model that the present invention protects
It encloses.
Referring to Fig. 1, the embodiment of the present invention includes:
A kind of wireless communication data processing method based on buffer circle, includes the following steps:
(1)Initialize installation:
Read pointer P_R, write pointer P_W, system semaphore pointer Buf_sem, buffering area count pick up value flag are set, and system exists
Apply for one section of memory headroom when initialization first, write pointer P_W and read pointer P_R are directed toward to the ground of memory BOB(beginning of block) respectively
It is initialized as 0 at location, by system semaphore pointer Buf_sem, buffering area count pick up value flag is initialized as 0;
(2)Write data:
When data are written to buffer circle, the size of buffering area count pick up value flag and buffering area is first determined whether,
If buffering area count pick up value flag is more than buffering area, which, which will be blocked, waits until that buffering area has
It can be just waken up when space,
If buffering area count pick up value flag is less than buffering area, system temporarily enters critical zone and carries out critical protection to system,
Anti- locking system generates interruption, the buffer data of this task is destroyed to avoid other tasks, then by buffering area count pick up
Value flag+1, the value that will be written are put at the address that write pointer P_W is directed toward, then by write pointer P_W+1, judge whether to be equal to
The end of buffering, if it is then write pointer P_W is directed toward at the first address of buffering area, by system semaphore pointer Buf_sem
+ 1, exit critical zone write operation and finish, the operation in this critical zone take have to it is very short because shielding in system at this time
It is disconnected, can not multitask running again, reduce the efficiency of system, this is very fearful in the very high operating system of requirement of real-time
's;
(3)Read data:
When reading data to buffer circle, first determine whether the value of system semaphore pointer Buf_sem can use, if being
The value of system semaphore pointer Buf_sem is less than 0, then this task enters blocked state, is just continued to execute when having semaphore,
If the value of system semaphore pointer Buf_sem is more than 0, system immediately enters critical zone and carries out critical protection to system,
Read pointer P_R is directed toward the value at address and taken out, makes read pointer P_R+1, then judge by then buffering area count pick up value flag-1
Whether read pointer P_R has been directed to the end of buffer circle, if it is, read pointer P_R is directed toward opening for buffer circle
Head exits critical zone after the above end of operation at once, and the read operation of buffer circle can be realized in the value for returning to taking-up.
Advantageous effect the present invention is based on the wireless communication data processing method of buffer circle is:
By carrying out length limitation before to data write-in, and it is data cached in receiving terminal, in addition consider wireless communication system
Small base station, the write-in for multithreading and multi-process or reading module, between writing module and reading intermodule progress is critical
Area is handled, and the processing speed and safety to data provide certain guarantee, and the coordination of data is carried out for reading in and reading module
And consistency treatment, while also saving memory headroom.
Example the above is only the implementation of the present invention is not intended to limit the scope of the invention, every to utilize this hair
Equivalent structure or equivalent flow shift made by bright description is applied directly or indirectly in other relevant technology necks
Domain is included within the scope of the present invention.
Claims (1)
1. a kind of wireless communication data processing method based on buffer circle, which is characterized in that include the following steps:
(1)Initialize installation:
Read pointer P_R, write pointer P_W, system semaphore pointer Buf_sem, buffering area count pick up value flag are set, and system exists
Apply for one section of memory headroom when initialization first, write pointer P_W and read pointer P_R are directed toward to the ground of memory BOB(beginning of block) respectively
It is initialized as 0 at location, by system semaphore pointer Buf_sem, buffering area count pick up value flag is initialized as 0;
(2)Write data:
When data are written to buffer circle, the size of buffering area count pick up value flag and buffering area is first determined whether,
If buffering area count pick up value flag is more than buffering area, which, which will be blocked, waits until that buffering area has
It can be just waken up when space,
If buffering area count pick up value flag is less than buffering area, system temporarily enters critical zone and carries out critical protection to system,
Anti- locking system generates interruption, the buffer data of this task is destroyed to avoid other tasks, then by buffering area count pick up
Value flag+1, the value that will be written are put at the address that write pointer P_W is directed toward, then by write pointer P_W+1, judge whether to be equal to
The end of buffering, if it is then write pointer P_W is directed toward at the first address of buffering area, by system semaphore pointer Buf_sem
+ 1, it exits critical zone write operation and finishes;
(3)Read data:
When reading data to buffer circle, first determine whether the value of system semaphore pointer Buf_sem can use, if being
The value of system semaphore pointer Buf_sem is less than 0, then this task enters blocked state, is just continued to execute when having semaphore,
If the value of system semaphore pointer Buf_sem is more than 0, system enters critical zone and carries out critical protection to system, then
Read pointer P_R is directed toward the value at address and taken out, make read pointer P_R+1, then judges to read to refer to by buffering area count pick up value flag-1
Whether needle P_R has been directed to the end of buffer circle, if it is, read pointer P_R is directed toward to the beginning of buffer circle, with
The read operation of buffer circle can be realized in upper end of operation backed off after random critical zone, the value for returning to taking-up.
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Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
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CN109710313A (en) * | 2018-12-19 | 2019-05-03 | 珠海格力电器股份有限公司 | Communication instruction processing method and system |
CN111008164A (en) * | 2019-12-04 | 2020-04-14 | 天津七一二通信广播股份有限公司 | Inter-node multi-cache type communication method based on storage mapping type bus |
CN111538607A (en) * | 2020-06-22 | 2020-08-14 | 北京翼辉信息技术有限公司 | Message communication method and device based on boundary protection |
CN111767154A (en) * | 2020-06-19 | 2020-10-13 | 北京思特奇信息技术股份有限公司 | Lock-free circular queue implementation method for non-blocking communication |
CN111865824A (en) * | 2020-06-19 | 2020-10-30 | 重庆川仪自动化股份有限公司 | Method and system for designing double-pointer annular buffer area in serial port communication |
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CN109710313A (en) * | 2018-12-19 | 2019-05-03 | 珠海格力电器股份有限公司 | Communication instruction processing method and system |
CN111008164A (en) * | 2019-12-04 | 2020-04-14 | 天津七一二通信广播股份有限公司 | Inter-node multi-cache type communication method based on storage mapping type bus |
CN112235206A (en) * | 2019-12-20 | 2021-01-15 | 青岛鼎信通讯股份有限公司 | Annular buffer queue data receiving mechanism based on single chip microcomputer |
CN111767154A (en) * | 2020-06-19 | 2020-10-13 | 北京思特奇信息技术股份有限公司 | Lock-free circular queue implementation method for non-blocking communication |
CN111865824A (en) * | 2020-06-19 | 2020-10-30 | 重庆川仪自动化股份有限公司 | Method and system for designing double-pointer annular buffer area in serial port communication |
CN111538607A (en) * | 2020-06-22 | 2020-08-14 | 北京翼辉信息技术有限公司 | Message communication method and device based on boundary protection |
CN111966498A (en) * | 2020-08-27 | 2020-11-20 | 南京电研电力自动化股份有限公司 | Power distribution room Internet of things gateway data rapid processing method and system and storage medium |
CN111966498B (en) * | 2020-08-27 | 2023-08-25 | 南京电研电力自动化股份有限公司 | Rapid processing method, system and storage medium for gateway data of Internet of things in power distribution room |
CN112235204A (en) * | 2020-10-13 | 2021-01-15 | 中移(杭州)信息技术有限公司 | Data reporting method, system, electronic equipment and storage medium |
CN112732429A (en) * | 2021-01-18 | 2021-04-30 | 国汽智控(北京)科技有限公司 | Task scheduling method, device, equipment and storage medium |
CN112882831A (en) * | 2021-02-04 | 2021-06-01 | 浙江大华技术股份有限公司 | Data processing method and device |
CN114168365A (en) * | 2021-12-07 | 2022-03-11 | 中国船舶重工集团公司第七0七研究所 | Real-time data recording method based on stm32f450 processor |
CN114168365B (en) * | 2021-12-07 | 2023-06-20 | 中国船舶重工集团公司第七0七研究所 | Real-time data recording method based on stm32f450 processor |
CN116126500A (en) * | 2023-02-13 | 2023-05-16 | 安徽理工大学 | Method for optimizing dispatching efficiency of massive remote sensing images |
CN116126500B (en) * | 2023-02-13 | 2024-03-29 | 安徽理工大学 | Method for optimizing dispatching efficiency of massive remote sensing images |
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